Say that you have an incoming BizTalk message with many repeating nodes, and you want to process each one the same. The easiest thing to do would be to use the envelope to split the single message into multiple messages, then have multiple instances of your orchestration handle each one (similar to how the HIPAA “multiple” message schemas work). But what if you need to do some work after every individual message has been processed? I’ll show you how to use the Loop functoid along with xpath queries ......